[publius911]

The one-fifth of American Muslims who share common cause with Islamic terrorists are a fifth column in our midst.

I need to clarify that.
It's more like 60% by active actions, silent acquiescence or outright hostility.
These are potential terrorists given the opportunity. Many, a significant number, were "naturalized" fraudulently. Assimilation is the farthest thing in their future plans; regardless of their oath of citizenship.

[publius911]

Indeed, in a recent survey by the Pew Forum of Religion and Public Life, one in five Muslims here in the United States said that “suicide bombing or other forms of violence against civilians in the name of Islam” could be justified.

And Pew actually believes that the other 80% answered truthfully?
I would not bet my life, those of my family or my community on it.
Muslim behavior worldwide would define me as an idiot, prey to the human animals.